Metal Bellows Couplings are because of their high torsional stiffness and flexibility used
everywhere, where even high torques have to be transmitted absolutely backlash free.
At the same time they are able to compensate misalignments between actuation and output
shaft caused by production tolerances, with only a minimum of reset force, what makes the
lifetime of bearings rise considerably.
For those reasons metal bellows couplings are in a time of steadily growing requirements on
power transmission components essential elements which have an important meaning in
almost every modern drive chain.
Applications are because of the many different designs almost unlimited.
On the one hand, there are huge, extremely robust versions bearing up under most difficult
environmental circumstances. On the other hand there are space saving, short and lightweight
couplings for smallest shaft diameters ? the miniature couplings.
Most types consist of only one part and can be easily and quickly mounted, in case of the
version with collet clamps by tightening only one screw per hub.
This coupling has got the advantage that there are absolutely no traces left on the shafts after
demounting the coupling and that there are no frictional faces during usage which makes it
very long lasting and maintenance ? free.

KBK Metal Bellows Couplings are available in the following versions:

KB1 Miniature Bellows Coupling with set screws Torque range: 0,1 ? 10 Nm	?
KB2 Miniature Bellows Coupling with collet clamps Torque range: 0,1 ? 10 Nm	?
KB3 Miniature Bellows Coupling with expanding clamp Torque range: 0,4 ? 10 Nm	?
KB4 Metal Bellows Coupling with collet clamps Torque range: 18 ? 500 Nm	?
KB5 Metal Bellows Coupling with conical hubs Torque range: 18 ? 5000 Nm	?
KB6 Metal Bellows Coupling with outer conical hubs Torque range: 18 ? 5000 Nm	?
KB7 Metal Bellows Coupling for flange mounting, customized designs Torque range: 18 ? 5000 Nm	?

• All types available in up to four different lengths
• Solutions for shaft diameters from 1 to 90 mm., Bores in inch available
• Customized solutions on request
• Keyways optional

Advantages of the KBK Metal Bellows Couplings:
? To assure highest concentricity, each coupling is assembled on a mandrel
? Each coupling is tested several times during the manufacturing process and in a final
inspection, so 100% quality is guaranteed
? Extremely space saving and concerning matters of minimum weight and inertia highly
optimised
? Highest resistance against environmental circumstances like temperatures because of
special assembling methods
? Absolutely free of backlash because of the maximum torsional stiffness
? Non - wearing, maintenance free, fatigue endurable

Some typical applications for KBK Metal Bellows Couplings:
? encoders
? tacho sensors
? potentiometers
? small servo drives
? stepping motors
? instrumentation and control systems
? servo drives
? machine tools
? cnc machines
? wood working machines
? packing machines
? factory automation machinery
? stone working machines
? engraving machines
? printing machines
? sheet metal forming machines
? industrial robots
? textile machines
? control and feedback control systems